All Things Mk5 > How to Guides / Troubleshooting

Error code P0402 after installing ramair filtet kit

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sobbe:
I been getting an error code P0420 (1056) on my golf mk5 gti from 2005

I been getting the error code some days after installing a ramair air filter kit

Have any of you got this error code, after installing an air filter kit??

slix:
Are all the pipes and silicone done up tight? As if the bit near the turbo housing isn't 100% it might not be fully sealed. It's a pain to get down there I know.

sobbe:
It should be very well tightned :happy2: I am aware that the error code can appear if there is a leak in the air filter kit, or if it is not properly tightned.

But i will examine it tommorrow :smiley:

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